10121011998534 has 96 divisors (see below), whose sum is σ = 22769196742656. Its totient is φ = 3369496553280.

The previous prime is 10121011998533. The next prime is 10121011998553. The reversal of 10121011998534 is 43589911012101.

10121011998534 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 10 + 1 + 19 + 98 + 534 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 10121011998534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121011998533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1810230079 + ... + 1810235669.

It is an arithmetic number, because the mean of its divisors is an integer number (237179132736).

Almost surely, 2^{10121011998534} is an apocalyptic number.

10121011998534 is an abundant number, since it is smaller than the sum of its proper divisors (12648184744122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10121011998534 is a wasteful number, since it uses less digits than its factorization.

10121011998534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9552 (or 9540 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 45.

The spelling of 10121011998534 in words is "ten trillion, one hundred twenty-one billion, eleven million, nine hundred ninety-eight thousand, five hundred thirty-four".